Cruise inventory

FRV Clupea 0498C

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier0498C
Cruise period1998-03-03 — 1998-03-23
StatusCompleted
Port of departureFraserburgh, United Kingdom
Port of returnPeterhead, United Kingdom
Objectives1. To determine the abundance and distribution of piscivorous demersal fish species by bottom trawl survey.
2. To determine the age and length composition, and age-length and weight-length relationships, of piscivorous demersal fish species. Stomach samples will be collected to determine the diets of these fish predators.
3. To assess the abundance of sandeels in the sediment by grab sampling survey (approximately 300 grab stations). Sandeels caught will be measured and weighed and otoliths taken for age determination. Sediment samples will be taken to investigate the relationship between sandeel density and sediment particle size distribution, and to improve the ground-truthing of the RoxAnn data.
4. To compare the effectiveness of grab sampling (a further 200 grab stations approximately) and dredging (being done by RV Bernicia) as a means of estimating sandeel density in the sediments. Sandeels caught will be measured and weighed and otoliths taken for age determination.
5. To determine the abundance and distribution of clupeids and sandeels in the water column off the Firth of Forth by echo-integrator survey.
6. To determine sandeel and clupeid age and length composition by pelagic trawl sampling. Weight-length and age-length relationships will be determined. Otoliths will be collected for age determination.
7. To map seabed sediment type using ROXANN, backed up by grab sampling.
8. To determine spatial variation in the temperature and salinity profiles in the water column using a Seabird CTD sampler.
9. To determine the abundance and distribution of other top predators (seals, cetaceans, seabirds) in relation to pelagic fish distribution.
Chief scientistSimon Greenstreet (Fisheries Research Services Aberdeen Marine Laboratory)
Cruise reportFRV Clupea 0498C cruise report cl4_98.pdf — access key 'C' (0.30 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificMoray Firth, Firth of Forth, Wee Bankie and Marr Bank
Track chartsFRV Clupea 0498C cruise track — trk4331a.html FRV Clupea 0498C cruise track — trk4331b.html FRV Clupea 0498C cruise track — trk4331c.html FRV Clupea 0498C cruise track — trk4331d.html FRV Clupea 0498C cruise track — trk4331e.html
Measurements 
Physical oceanography 
CTD stationsQuantity: number of stations = 19
Description: SBE CTD stations
Biology and fisheries 
BirdsDescription: Throughout Seabirds
Pelagic fishQuantity: number of hauls = 3
Description: Trawl hauls
Demersal fishQuantity: number of hauls = 28
Description: Trawl hauls
Other biological/fisheries measurementDescription: Throughout Seals and cetaceans
Geology and geophysics 
GrabQuantity: number of samples = 244
Description: Grab samples
Multi-beam echosoundingDescription: Throughout Echo integrator
Other geological/geophysical measurementsDescription: Throughout RoxAnn
Data held at BODC 
Series/Profiles 
19  CTD/STD cast
Electrical conductivity of the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Reference numbers
Electrical conductivity of the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Reference numbers

BODC idDate/TimeLocationDoc.
5105341998-03-04 09:30 56° 27' 49" N  2° 27' 3" W  View metadata report for BODC series reference number 510534
5105461998-03-04 10:27 56° 27' 32" N  2° 11' 19" W  View metadata report for BODC series reference number 510546
5105581998-03-04 13:45 56° 27' 33" N  1° 46' 18" W  View metadata report for BODC series reference number 510558
5105711998-03-04 15:00 56° 22' 37" N  1° 57' 21" W  View metadata report for BODC series reference number 510571
5105831998-03-04 18:52 56° 20' 53" N  2° 22' 28" W  View metadata report for BODC series reference number 510583
5105951998-03-05 09:15 56° 17' 48" N  1° 51' 6" W  View metadata report for BODC series reference number 510595
5106021998-03-05 12:25 56° 16' 11" N  1° 31' 49" W  View metadata report for BODC series reference number 510602
5106141998-03-05 13:20 56° 13' 9" N  1° 38' 18" W  View metadata report for BODC series reference number 510614
5106261998-03-06 08:25 56° 2' 50" N  1° 59' 22" W  View metadata report for BODC series reference number 510626
5106381998-03-06 09:45 56° 2' 24" N  1° 43' 28" W  View metadata report for BODC series reference number 510638
5106511998-03-06 12:55 56° 2' 30" N  1° 20' 58" W  View metadata report for BODC series reference number 510651
5106631998-03-06 13:40 56° 7' 33" N  1° 28' 34" W  View metadata report for BODC series reference number 510663
5106751998-03-06 17:04 56° 8' 8" N  1° 52' 28" W  View metadata report for BODC series reference number 510675
5106871998-03-07 09:30 56° 7' 7" N  2° 29' 20" W  View metadata report for BODC series reference number 510687
5106991998-03-07 10:20 56° 10' 59" N  2° 20' 45" W  View metadata report for BODC series reference number 510699
5107061998-03-07 13:15 56° 17' 40" N  2° 8' 35" W  View metadata report for BODC series reference number 510706
5107181998-03-07 14:15 56° 12' 25" N  1° 56' 19" W  View metadata report for BODC series reference number 510718
5107311998-03-07 17:10 56° 6' 47" N  2° 10' 44" W  View metadata report for BODC series reference number 510731
5107431998-03-08 12:48 56° 7' 49" N  2° 50' 31" W  View metadata report for BODC series reference number 510743